reading hex values from fstream into int

Question

I have a text file which has one hex value in each line. Something like

80000000
08000000
0a000000

Now i am writing a c++ code to read this

Answer 1

... and the way to change it is to use noskipws: f >> std::noskipws; will set no skipping of whitespace until you use std::skipws manipulator.

But why do you want to read the '\n'? To make sure that there is one number per line? Is it necessary?